Despite President Donald Trump's initial vows to rebuild broken ties between Russia and the U.S., the world's two leading military powers have been at major odds.
Experts say North Korean missile sites covered by recent reports have been long known to U.S. intelligence and that Washington and Pyongyang were still talking.
The Department of Homeland Security's inspector general advised the nation to change its emergency alert system.
President Donald Trump also called The New York Times article "inaccurate" and "Fake News."
A landslide 189-2 vote saw the U.N. condemn the U.S. embargo of Cuba, just as the island's president visited a Cold War-era ally in Russia.
Russian Colonel General Vladimir Shamanov is the latest in Moscow to warn of a repeat to the Cuban Missile Crisis.
"We will find ourselves at ground zero," Russian Senator Alexei Pushkov warned.
The U.S. and Russia accused each other of violating the 1987 Intermediate-range Nuclear Forces treaty—and John Bolton wanted out.
The air force chief of Iran's elite Revolutionary Guards says they "are in possession of equipment more advanced than those of Russia, France, China and Britain."
An Iranian missile strike targeting jihadis just a few miles from U.S. troops in Syria was a response to warnings from the Trump administration.
In addition to the S-300 missile systems, Russia Defense Minister Sergei Shoigu said Moscow has improved its electronic warfare abilities.
"It is time now for Russia to come to the table and stop the violations," the U.S. ambassador to NATO told reporters.
Iran's top security official said Israel "will face regrettable reactions" if it tries to attack Syria again, as Russia's strategic balance sways.
President Donald Trump mocked the drone attack during a presidential rally in Venezuela, but it could happen in the U.S. as well.
Russia's decision to equip its Syrian ally comes after an Israeli air raid and amid U.S. threats of military action.
Russian President Vladimir Putin said U.S.-led NATO was refusing to discuss easing increasing tensions. NATO disputed this.
The Spanish Air Force fighter jet was flying alongside one Spanish and two French aircraft when it accidentally launched an air-to-air missile above Estonia.
A new 38 North report shows that Pyongyang appears to be exceeding U.S. expectations at a key launch site, but cautions that these are "first steps."
The Sinuiju Cosmetics Factory is known for its special "spring fragrance."
The Joint Air-to-Ground Missile is set to replace the Hellfire used in various U.S. military operations, from invasions to assassinations.
Officials in Japan have asked if Tokyo's missile defense project is still on after apparent North Korea thaw.
Trump said his relationship with North Korea "is very good" and that he expects "a total denuclearization, which is already starting to take place."
Russia's "Terminator" made its military debut last year in Syria and now the latest installment is set to include controlled air burst shells.